Blower Fan Motor Not Working

If there is a battery check if it is working properly.

Blower fan motor not working.

It doesn t work on any speed. Some of the heat pumps with electric heat control the blower using a sequencer. Power supplied from the fuse panel. This is another common reason behind faulty.

This can be annoying but troubleshooting is easy. If both the compressor and the fan motor won t run use a multimeter to test the temperature control thermostat for continuity. Many hvac related calls are due to the blower motor not working. Connect the black lead to a ground and then to the blower motor assembly.

Connect the red lead to a power source and then to the leads on the motor side of the disconnected connector. If you start at the blower motor and check resistance in the circuit you will find the problem in no time. If the motor still does not turn the motor is bad. The first thing to do is check the relay or voltage from the board.

If the compressor is running but the fan motor is not running the fan motor or the fan motor capacitor are likely at fault. If no voltage is recorded you will have to replace the board or the relay. If the motor turns the connector is bad. The blower motor is crucial to the proper function and operation of your hvac system.

I went ahead and replaced the blower motor resistor and cabin air filter but it is still completely dead. You should be able to find this relay or sequencer by tracing the blower motor wires back to the relay or sequencer. If you are getting 24 volts between g and c then you probably have a fan relay problem or sequencer problem. I don t think it is the fuse.

Some control the blower fan with a relay. Blower stopped working last thursday it came back on friday after i wiggled the blower motor resistor went back out saturday.